Nut-lock.



M. M. GOBLE.

NUT LOOK.

APPLICATION FILED MAR. 23, 1914.

Patented Nov. 3, 1914.

MILTON M. GOBLE, on GRAND Rais ns, MIC IGAN. a

NUT-LOCK.-

Specification of Letterslatent.

Patented Nome, 191i".

To all whom it may concern Be it known that I, MILTON M. GOBLE,

- citizen of, the United States, residing at Grand'Rapids, in. thecounty of Kent and State of Michigan, have invented certain new anduseful Improvements in N ut-Locks, of which the following is aspecification;

This inventionv relates to nut locking devices and'more particularly toan improvement in look washers.

The washer of the present invention is of that type including .alockingtongue which cooperates with the flattened side of a bolt and which isengaged and cut by the threads of the nut as the nutis turned upon thebolt. There are a number of lock washers'of this general type whichpresent the disadvane tage'that they must be held against the part to besecured as the nut is turned into place secured as to provide againstvibration. Such lock washers must be held against the part to besecured, due to the fact that if merely disposed upon the bolt and thenut is then turned, the nut will lock with the ton ue of the washerbefore the washer can be feed or moved along the bolt into properengagement with the said part.

It is therefore an aim of the present invention to provide a lock washerof such construction thatit may be placed upon the bolt at any point andwill be movedto position against the part to be secured, by the nut asthe nut is turned and without any possibility of the nut locking withthe tongue of the washer until the washer is securely in positionagainst the said part.

It is also an aim of the present invention to so arrange the lockingtongue of the washer that when engaged by the nut, it will exert awedging action upon the nut, there- .by canting the nut to a greater orless degree upon the bolt and causingthe'threads of the nut and bolt tofirmly bind each other and thereby provide'against the disastrousresults of vibration.

In the accompanying drawings: Figure l is a longitudinal sectional viewthrough a bolt and nut and the lock washer embodying thepresentinvention, the said view illustrating the manner in which thewasher may,

be moved along the bolt as the nut is rotated into place; Fig. 2 is avertical transverse sectional view on theline 2-2 of Fig. 1; Fig. 3 is aview similar to Fig. 1, illustrating the ,nut tightened and locked; Fig.a

vertlcal-transverse sectional view on the line H of Fig.3; ig'. 5 isaperspective view of thewasher embodying the nvention, the

samebeingin its initial condition; Fig. 6 is a view similar to Fig.- 5,but illustrating the condition of the locking tongue after the nut hasbeen removed as also the washer.

Corresponding and like parts are referred to in the followingdescription and indicated mall the views of the drawings bythesamereference characters. i

In the drawings, the numeral 1 indicates a bolt havlng the usualthreaded portion2 and provided with a flattened side 3iwhich extends agreateror less distance in the length of thethreaded portion 2. The nutis indicated by the numeral 4 and is of the ordinary form. and even whenso held will not be so firmly held by the nut against the said part tobe The lock washer embodying the present invention comprises abodyportion 5 which may have any desired marginal contour and which isprovided with one or more nut engaging tongues 6 which are to be bent orstruck down to engage one or more facesof the nut, whereby to hold thenut against rotat on with respect to the washer. The

washer 5 is provided with a bolt opening 7 and at one side of the boltopening, the body portion of the washer is formed with parallel slits 8;located at opposite sidesof a line passing through the axis of. theopening. .The material of which the washer is formed is stamped'backbetween the slits 8 asindicated at 9 to form the shankof the lockingtongue, the said portion 9 extending downwardly and rearwardly at anangle with respect to the plane of the washer and being of. alength'substantially equal to the length of either slit 8. The locking tongue,as awhole,

is however, ofgreater length than the said portion 9 and it is benttransversely as at,

10 to form a portion 11 which extends for-.

,wardly s'ubstantially at right angles to the portionf9. Stated, inotherwords the portion l l is inclined downwardly and forwardly towardthe plane ofthe washer and its forward edge 12 is located at the lowerends of the slitsS and touches the plane of the forward face of thewasher. By referwillbe observed that the forward end 12 of the lockingtongue is blunt and is preferably straight or, in other words, parallelto the bend 10. a

Referring now to Fig. 1 of the drawings,

ence to Figs. 1, :3 and 5 of the drawings, it

it will be observed that when the washer is dlsposed upon the bolt 1,the forward edge of the locking tongue will rest in engagement with theflattened surface 3 of the bolt and the bend 10 will be presented towardthe member to be secured which, in Fig. 1 of the drawings, is indicatedat A. As the nut is rotated upon the bolt in a direction to tighten thesame thereon, its face, which is pre'sente'dtoward the said part A, willcome'in'to contact with the forward face of the washer and as the nut isfurther rotated, the washer will be fed or moved along the bolt until ithas been brought to position resting against the face of the said partA. Upon further rotation of the nut to tighten the same, the washer willbe forced toward the said part and in such movement the portion 9 of thelocking tongue will be pressed forwardly and the portion 11 of the saidtongue will be forced in a corresponding direction and into engagementwith the threads of the nut and between the wall of the bolt opening andthe flattened surface 3, the threads of the nut cutting into the edgesand side portions of the part 11 of the tongue and mutilating the samein the manner shown in Fig. 6 of'the drawings.

It will now be apparent that when the washer has been forced to positionlying flat against the surface of the part A, the portion 9 of thelocking tongue will occupy the plane of the washer and the portion 11 ofthe tongue will be in the position shown in Fig. 3 of the drawings.

From the foregoing it will be obvious that due to the fact that theforward end l2- of the locking tongue barely touches the plane of theforward face of the washer, there will be no possibility of, the nutlocking with the tongue as the nut is rotated against the said face ofthe washer, until the washer has been forced against the part A.

It will be obvious that the engagement of the threads of the nut withthe locking tongue and the we'dging action exerted by the tongue uponthe nut is such that the nut is substantially as firmly united to thebolt as if welded thereto.

Having thus described the invention, what is claimed as new is:

1. A look washer having a bolt opening and provided at one side of thebolt opening with a locking tongue having relatively angularly disposedportions lying bodily rearwardly of the plane of the forward face of thewasher and extending to a point beyond the rear face, the extremity ofthe Copies "of this patent may be obtained for five cents each, byWashington, D. '0.

tongue being presented in a general forward direction.

2. A look washer having a bolt opening and provided at one side of thebolt opening with a locking tongue extended rearwardly and thenceforwardly and toward the axis of the opening with its extremityterminating substantially at the plane of the forward face of thewasher.

3. A look washer having a bolt opening and provided at one side of thesaid opening with a locking tongue, the said tongue, from its juncturewith the body of the washer, being extended rearwardly beyond the rearface of the washer and toward the axis of the bolt opening and thenceforwardly and toward the said axis of the bolt opening,

the tongue lying bodily at one side of the plane of the forward face ofthe washer and the extremity of the tongue terminating substanti'ally inthe said plane.

4. A look washer having a bolt opening and provided at one side of thesaid opening with parallel slits, the material between the slits beingstruck out to form a locking tongue lying bodily at one side of theplane of one face of the washer and extending beyond the other face andhaving its extremity presented toward the first-named face andterminating within the bolt openg The combination with a bolt having afiattened' side, of a lock washer having a bolt opening for thereception of the bolt and provided at one side of said opening with alocking tongue extending inwardly at an angle from the rear face of thewasher and thence forwardly at an angle toward the forward face thereofand arranged, when disposed upon the bolt, to have its extremity restagainst the said flattened portion there of, the locking tongue beingarranged by the engagement of its bend against a part secured by thebolt upon which the washer is positioned to have its forwardly pro ecting portion forced between the flattened s de of the bolt and the wallof the bolt opening in the nut and to have threads out in its saidportion by the threads of the said nut when the nut is tightened uponthe bolt and against the washer.

In testimony whereof I affix my signature in presence *of two witnesses.

MILTQN M. GOBLE. [1,. s]

Witnesses:

SAMUEL N. AoKnR, J. D. YOAKLEY.

addressing the Commissioner of Patents,

